<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <el-card>

      <!-- 搜索/添加 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <!-- clearable 清空 -->
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodList">
          <el-button slot="append" icon="el-icon-search" @click="getGoodList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">添加商品</el-button>
        </el-col>
      </el-row>

      <el-table :data="goodList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column prop="goods_name" label="商品名称"></el-table-column>
        <el-table-column prop="goods_price" label="商品价格（元）" width="120px"></el-table-column>
        <el-table-column prop="goods_number" label="商品数量" width="90px"></el-table-column>
        <el-table-column prop="goods_weight" label="商品重量" width="90px"></el-table-column>
        <el-table-column prop="add_time" label="创建时间" width="180px">
          <template slot-scope="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="120px">
          <template slot-scope="scope">
            <el-button type="primary" size="mini" icon="el-icon-edit"></el-button>
            <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeGoodById(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[3, 5, 10, 15]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total" background>
      </el-pagination>

    </el-card>
  </div>
</template>
<script>
export default {
  data() {
    return {
      queryInfo: {
        query: '',
        pagenum: 1, 
        pagesize: 10
      },
      goodList: [],
      total: 0,
    }
  },
  created() {
    this.getGoodList()
  },
  methods: {
    async getGoodList() {
      const {data: res} = await this.$http.get('goods', {params: this.queryInfo});
      if(res.meta.status !== 200) return this.$message.error('获取商品列表失败');
      // console.log(this.goodList);
      this.goodList = res.data.goods;
      this.total = res.data.total;
    },
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getGoodList();
    },
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getGoodList();
    },
    async removeGoodById(goods_id) {
      const confirmResult = await this.$confirm('此操作将删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err);

      if(confirmResult != 'confirm') {
        return this.$message.info('取消删除操作');
      } else {
        const {data: res} = await this.$http.delete(`goods/${goods_id}`);
        if(res.meta.status != 200) return this.$message.error('删除参数失败');
        this.$message.success('删除参数成功');
        this.getGoodList();
      }
    },
    goAddPage() {
      this.$router.push('/goods/add')
    }
  }
}
</script>
<style lang="less" scoped>
  
</style>